(A dual distribution system is one where pipes carrying reclaimed water are separate from those carrying potable water.) In existence since the 1970s, this network provides reclaimed water to residences, golf courses, parks, schools, and commercial areas for landscape irrigation, and to commercial and industrial customers for cooling and other applications.
The superhero is often called a unique American phenomenon. Inspired by comic books, particularly the Superman series in the early 1930s, superheroes with superhuman strength and a desire to save the world became the stuff of many a childâs, and also numerous adultsâ dreams and fantasies.
More than 70 years ago, the very first superheroes debuted in the dire times of the Great Depression and the early years of World War II. Their names became legend -- Superman, Batman (or, as he was then known, the Bat-Man), Wonder Woman, Captain America -- and they're still with us today.